follow Dictionary.com

Denotation vs. Connotation

sunspot cycle

noun, Astronomy
1.
the cycle, averaging in duration slightly more than 11 years, in which the frequency of sunspots varies from a maximum to a minimum and back to a maximum again.
Compare solar cycle.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for sunspot cycle
Historical Examples
  • Also the present sunspot cycle started its rise to maximum about 1954.

    Disturbing Sun Robert Shirley Richardson
  • The sunspot cycle has appeared to average 11.2 years in length, and has been called the 11-year cycle.

    Climatic Changes Ellsworth Huntington

Word of the Day

Difficulty index for sunspot cycle

Few English speakers likely know this word

Word Value for sunspot

9
12
Scrabble Words With Friends

Nearby words for sunspot cycle